The RBU-1200 (Russian: Реактивно-Бомбовая Установка, Reaktivno-Bombovaja Ustanovka; reaction engine-bomb installation & Смерч; waterspout) is a anti-submarine rocket launcher. The weapon system is remotely similar to the British Hedgehog anti submarine mortar launcher from the Second World War.

The RBU-1200 system was developed in 1955 to provide anti-submarine capability against submarines and torpedoes by surface vessels. In order to allow installation on small warships the design was made very lightweight.

The RBU-1200 system has five tubes with rocket-propelled depth bombs per each launcher. Reloading is performed manually. The launcher cannot be swiveled horizontally, but rather has to be aimed by turning the entire warship, which is a serious disadvantage of the weapon system and limits its flexibility.

The system is controlled by a PUS-B "Uragan" fire control system.

The system uses RGB-12 rocket-propelled depth bombs,which are fitted with contact fuzes. The projectile is propelled by a solid rocket fuel motor initially, and for the rest of the flight it follows a ballistic arc. The effective range of the system extends from 400 to 1200 meters. The contact fuze K-3 / K-3M, or combined contact-delay fuze KDV are used as a detonators. K-3 / K-3M fuze detonates the warhead if a target is hit directly or if the projectile sinks to the bottom. The KDV fuze besides activating on impact on the target (or bottom) at the depths of 25-330 meters can also be set to activate upon reaching a specified depth in the range of 10-330 meters.^[1]

• Weight: 620 kg (empty)
• Length: 1.38 m
• Height: 1.1 m
• Width: 1,115 m
• Elevation: 0 to 51 °
• Traverse: 0°

• Weight: 73 kg
• Warhead: 30 kg
• Diameter: 251.7 mm
• Length: 1.24 m
• Range: 400 m to 1200 m
• Depth: up to 350 m
• Rate of descent: 6.25 m/s

Ship classes fitted with RBU-1200 (list not complete):

•  Albanian Naval Force
  • Kronshtadt-class submarine chaser
•  Bangladesh Navy
  • Haizhui-class submarine chaser
  • Type 037 submarine chaser
  • Type 053H1 frigate
  • Type 053H2 frigate
•  People's Liberation Army Navy
  • Type 051 destroyer
  • Type 052 destroyer
  • Type 053H1 frigate
•  Bulgarian Navy
  • Kronshtadt-class submarine chaser
  • Pauk-class corvette
•  Cuban Revolutionary Navy
  • Pauk-class corvette
  • Kronshtadt-class submarine chaser
•  Egyptian Navy
•  Finnish Navy
  • Hämeenmaa-class minelayer
  • Kiisla-class patrol boat
  • Kronshtadt-class submarine chaser
•  Indonesian Navy
  • Kronshtadt-class submarine chaser
•  Indian Navy
  • Abhay-class corvette
•  Libyan Navy
  • Natya-class minesweeper
•  Myanmar Navy
  • Aung Zeya-class frigate
  • Kyan Sittha-class frigate
  • Type 053H1 frigate
  • Anawrahta-class corvette
  • Yan Nyein Aung-class submarine chaser
  • Hainan-class submarine chaser
•  Polish Navy
  • Kronshtadt-class submarine chaser
•  Romanian Naval Forces
  • Kronshtadt-class submarine chaser
•  Soviet Navy
   Russian Navy
  • Project 1241.2 (Pauk class)
  • Project 266M (Natya class)
  • Kronshtadt-class submarine chaser
•  Syrian Navy
  • Natya-class minesweeper
• Vietnam People's Navy
  Vietnam People's Ground Force
  • Installed on Vietnam People's Navy's decommissioned Project 201 subchasers. Usable systems are transferred to the Vietnam People's Ground Force for ground-attacking roles.
    Refurbishing, upgrading and resembling projects are reported.^[3]
•  Volksmarine
  • Project 12 (Hai-class)

• RBU-1000
• RBU-2500
• RBU-6000
• RBU-12000

• The Naval Institute Guide to World Naval Systems 1997-1998
• Warfare.ru Smerch system
• "RBU-1200 (реактивно-бомбомётная установка - reaktívny vrhač bômb)" [RBU-1200 ( реактивно-бомбомётная установка - reactive bomb launcher )] (in Czech). 19 January 2019. Retrieved 11 September 2019.

• Реактивная бомбометная установка РБУ-1200 of milrus.com (russian)
• World-Wide Ahead Throwing ASW Weapons of alternatewars.com